Bug 110319

Summary: [i915 regression] X fails to start with blank screen without nomodeset.
Product: DRI Reporter: ROSEN PAPAZOV <rosenpapazov>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs, manasi.d.navare, rosenpapazov
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard: Triaged
i915 platform: BSW/CHT i915 features: display/eDP
Attachments:
Description Flags
journalctl_failed boot
none
journalctl
none
xorg.log
none
dmesg none

Description ROSEN PAPAZOV 2019-04-03 23:04:50 UTC 
Created attachment 143857 [details]
journalctl_failed boot

X server fails with modesetting error and blank screen without nomodeset [(EE) modeset(0): failed to set mode: Invalid argument].
GPU: Intel® HD Graphics 400 (Braswell)
CPU: N3050
Screen 0 connected on eDP-1
Acer es1-131 notebook

Tested versions from ubuntu disco dingo 5.0.0-8, stable 5.0.5/5.0.6,lts 4.19.33-4.19.25.
Working only on 4.19.25 and lower.

After reverting upstream commit d179b88deb3bf6fed4991a31fd6f0f2cad21fab5 (https://patchwork.freedesktop.org/patch/286290/) works without nomodeset parameter tested on 4.19.33-4.19.26/5.0.5/5.0.6/ubuntu 5.0.0-8.

Attempted suggested fix from https://bugs.freedesktop.org/show_bug.cgi?id=109959 does fix the issue.

Because I don't know what other information is required/feasable I'm able to test and provide necessary logs.

Thanks for your great work!

Sincerely yours newcomer,
Rosen Papazov
Comment 1 Lakshmi 2019-04-04 10:19:20 UTC 
@Manasi This issue  duplicate is a duplicate of Bug 109959?
@Rosen do you mean this patch fixes the issue? https://patchwork.freedesktop.org/series/58893/
Comment 2 ROSEN PAPAZOV 2019-04-04 10:45:49 UTC 
Sorry for the confusion. I've tested with the attached patch from Bug 109959 (before patchwork post https://bugs.freedesktop.org/attachment.cgi?id=143817) and it did not resolve the problem on kernel 5.0.5

Currently compiling kernel 5.0.6 with https://patchwork.freedesktop.org/series/58893/ and separate build with https://patchwork.freedesktop.org/series/58975/ to test. Will update with results ~20:00 UTC. 

Do you need specific log/trace to be attached?
Comment 3 ROSEN PAPAZOV 2019-04-05 00:34:38 UTC 
Created attachment 143870 [details]
journalctl
Comment 4 ROSEN PAPAZOV 2019-04-05 00:35:13 UTC 
Created attachment 143871 [details]
xorg.log
Comment 5 ROSEN PAPAZOV 2019-04-05 00:35:38 UTC 
Created attachment 143872 [details]
dmesg
Comment 6 ROSEN PAPAZOV 2019-04-05 00:38:52 UTC 
After testing both 5.0.5 ( https://patchwork.freedesktop.org/series/58893/ ) version of the patch and 5.0.6 ( https://bugs.freedesktop.org/attachment.cgi?id=143865 ) I can confirm that they do not fix the issue. 

Attached logs from last failed boot on 5.0.6
Comment 7 ROSEN PAPAZOV 2019-04-08 07:25:36 UTC 
The problem persists on Fedora 30 beta ( kernel 5.0.5-300.fc30, 5.0.6-300.fc30 and 5.1.0-0.rc3.git3.1.fc31). Tested with the patch from Bug 109959. 

Only viable solution for now is reverting upstream commit d179b88deb3bf6fed4991a31fd6f0f2cad21fab5 (https://patchwork.freedesktop.org/patch/286290/).
Comment 8 Lakshmi 2019-04-08 13:55:04 UTC 
(In reply to ROSEN PAPAZOV from comment #7)
> The problem persists on Fedora 30 beta ( kernel 5.0.5-300.fc30,
> 5.0.6-300.fc30 and 5.1.0-0.rc3.git3.1.fc31). Tested with the patch from Bug
> 109959. 
> 
> Only viable solution for now is reverting upstream commit
> d179b88deb3bf6fed4991a31fd6f0f2cad21fab5
> (https://patchwork.freedesktop.org/patch/286290/).
Duplicate to Bug 109806?
Comment 9 ROSEN PAPAZOV 2019-04-08 16:41:06 UTC 
Greetings,
Can confirm it matches Bug 109806. Wasn't able to find it. Sorry for the duplication. Will follow https://gitlab.freedesktop.org/xorg/xserver/issues/542 .

Best regards,
Rosen Papazov

*** This bug has been marked as a duplicate of bug 109806 ***
Comment 10 Lakshmi 2019-04-10 07:26:10 UTC 
(In reply to ROSEN PAPAZOV from comment #9)
> Greetings,
> Can confirm it matches Bug 109806. Wasn't able to find it. Sorry for the
> duplication. Will follow
> https://gitlab.freedesktop.org/xorg/xserver/issues/542 .
> 
> Best regards,
> Rosen Papazov
> 
> *** This bug has been marked as a duplicate of bug 109806 ***

Thanks for confirming. Closing this bug.

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